🦕 DinosaursGrade 2Reading: grades 1-2Place valueAdditionSubtractionSkip countingMissing addends
Case of the Super Bad Superhero
A villain hides among the heroes of Mathhattan and has kidnapped the Mayor. The police can't tell friend from phony — only a sharp math detective can. Solve each clue's math to decode it, cross suspects off the list, and name the one hero left standing.
Suspects
Possible suspects
Cross off a row as each clue rules it out. On screen, tap a row.
21 of 21 still in play
| Name | Main Power | Extra Power | Sex | Hair | Weakness |
|---|---|---|---|---|---|
| Owl Man | Mind Control | Shape Shifting | Female | Orange | Sunlight |
| Mrs. Amazing | Super Speed | Flight | Female | Green | Cookies |
| Lion Man | Energy Blasts | Sonic Scream | Female | Green | Silver |
| Starlight | Super Speed | Poisonous Burps | Female | Purple | Silver |
| Razor | Mind Control | Poisonous Burps | Male | Orange | Cookies |
| Mega Mage | Energy Blasts | Super Strength | Male | Purple | Cookies |
| Blitzfire | Teleportation | Poisonous Burps | Female | Purple | Cookies |
| Typhoon | Mind Control | Poisonous Burps | Female | Purple | Sunlight |
| Doctor Bolt | Teleportation | Sonic Scream | Male | Purple | Sunlight |
| Titanicus | Teleportation | Poisonous Burps | Male | Green | Cookies |
| Zapman | Super Speed | Super Strength | Female | Orange | Sunlight |
| Nightgale | Super Speed | Sonic Scream | Male | Purple | Cookies |
| Lady Bug | Mind Control | Shape Shifting | Male | Green | Sunlight |
| Captain Nucleus | Super Speed | Flight | Female | Purple | Sunlight |
| Thunder Hawk | Energy Blasts | Super Strength | Male | Orange | Silver |
| Pizza Peter | Invisibility | Shape Shifting | Female | Orange | Cookies |
| The Giggler | Teleportation | Shape Shifting | Male | Orange | Sunlight |
| Quasar | Super Speed | Shape Shifting | Female | Purple | Sunlight |
| Major Fury | Invisibility | Sonic Scream | Female | Purple | Sunlight |
| Dare Girl | Energy Blasts | Poisonous Burps | Female | Purple | Cookies |
| Iron Vox | Teleportation | Sonic Scream | Female | Purple | Sunlight |
Clue 1
Place value (tens & ones)
A torn note flutters out of the Mayor's office — but the words are hidden behind a math code. Solve it to read the first clue.
Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.
T
61
55
98
36
50
22
22
19
50
81
18
19
81
81
42
T
61
85
22
65
What number has 6 tens and 1 one?T
What number has 5 tens and 0 ones?I
What number has 8 tens and 1 one?N
What number has 9 tens and 8 ones?E
What number has 4 tens and 2 ones?O
What number has 8 tens and 5 ones?F
What number has 2 tens and 2 ones?L
What number has 3 tens and 6 ones?V
What number has 5 tens and 5 ones?H
What number has 1 ten and 9 ones?A
What number has 6 tens and 5 ones?Y
What number has 1 ten and 8 ones?C
0/12 letters found
Clue 2
Addition
A witness left a message at the scene, locked behind more math. Work it out to hear what they saw.
Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.
A
85
79
89
94
82
50
77
77
68
50
53
73
68
94
77
94
86
A
85
94
94
86
50
A
85
82
94
89
86
50
68
73
89
77
A
85
56
50
81
A
85
32
50
36 + 49 =A
33 + 23 =F
51 + 38 =I
42 + 39 =M
42 + 35 =S
30 + 56 =H
45 + 28 =O
34 + 34 =R
16 + 34 =E
36 + 43 =W
15 + 38 =P
34 + 60 =T
20 + 12 =L
30 + 52 =N
0/14 letters found
Clue 3
Subtraction
Down at the docks, someone scared the villain off and scribbled how. Crack the numbers to find out.
Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.
T
15
32
47
78
30
T
15
26
32
47
40
72
72
30
23
54
59
T
15
40
26
50
47
59
78
T
15
30
26
75
32
T
15
T
15
72
78
62
72
26
29
59
41
30
23
26
75
32
T
15
27 - 12 =T
73 - 23 =K
37 - 7 =N
45 - 13 =H
65 - 25 =R
62 - 3 =S
52 - 29 =L
92 - 20 =O
28 - 2 =I
107 - 32 =G
66 - 12 =Y
32 - 3 =D
70 - 29 =U
53 - 6 =E
70 - 8 =V
90 - 12 =A
0/16 letters found
Clue 4
Skip counting
The clean-up crew found something the villain dropped. Do the math to see what it was.
Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.
Y
6
80
15
36
16
55
22
24
140
26
25
55
22
24
80
36
18
15
26
18
60
45
50
25
16
26
21
50
45
26
45
140
50
45
65
25
Y
6
80
26
21
25
24
140
25
40
45
55
Skip-count by 2s. Fill the blank: 2, 4, ___, 8, 10Y
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, ___, 39, 42F
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, ___, 55, 60H
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, ___, 24, 27W
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, ___, 90, 100O
Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, ___, 24, 26D
Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, ___, 18, 20I
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, ___, 45, 50K
Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, ___, 28, 30R
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, ___, 70, 75M
Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, ___, 26, 28S
Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, 16, ___, 20, 22P
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, ___, 50, 55E
Skip-count by 5s. Fill the blank: 5, 10, ___, 20, 25U
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, ___, 60, 65N
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, ___, 30, 35A
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, 130, ___, 150, 160T
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, ___, 70, 80L
0/18 letters found
Clue 5
Missing addends — the last clue
You've almost got it. One last set of numbers will reveal exactly how the villain pulled it off.
First solve each problem. Then find each answer in the list below and cross that sentence out. One sentence will be left — that's exactly what the villain did!
Step 1 — solve these
5 + ___ = 7
1 + ___ = 8
1 + ___ = 9
10 + ___ = 20
5 + ___ = 14
8 + ___ = 19
2 + ___ = 6
10 + ___ = 16
1 + ___ = 13
7 + ___ = 8
4 + ___ = 9
Step 2 — cross out the sentence with each answer
1.The villain teleports behind victims without warning, then shape-shifts into a familiar face.
2.The villain turns invisible to slip past everyone, then unleashes a sonic scream.
3.The villain bends minds to make victims obey, then lets out a poisonous burp to weaken them.
4.The villain races through the streets at impossible speed, then lets out a poisonous burp to weaken them.
5.The villain turns invisible to slip past everyone, then takes to the sky.
6.The villain fires crackling energy blasts, then shape-shifts into a familiar face.
7.The villain races through the streets at impossible speed, then shape-shifts into a familiar face.
8.The villain teleports behind victims without warning, then unleashes a sonic scream.
9.The villain teleports behind victims without warning, then takes to the sky.
10.The villain fires crackling energy blasts, then lets out a poisonous burp to weaken them.
11.The villain fires crackling energy blasts, then unleashes a sonic scream.
12.The villain turns invisible to slip past everyone, then tears open locked doors with raw strength.
Solve it
Name the culprit
Choose the one suspect left standing.
Answer Key — Case of the Super Bad Superhero
Culprit: Typhoon (Mind Control · Poisonous Burps · Female · Purple · Sunlight)
- Clue 1 (Place value (tens & ones)): "THE VILLAIN CANNOT FLY"What number has 6 tens and 1 one? = 61 (T) · What number has 5 tens and 0 ones? = 50 (I) · What number has 8 tens and 1 one? = 81 (N) · What number has 9 tens and 8 ones? = 98 (E) · What number has 4 tens and 2 ones? = 42 (O) · What number has 8 tens and 5 ones? = 85 (F) · What number has 2 tens and 2 ones? = 22 (L) · What number has 3 tens and 6 ones? = 36 (V) · What number has 5 tens and 5 ones? = 55 (H) · What number has 1 ten and 9 ones? = 19 (A) · What number has 6 tens and 5 ones? = 65 (Y) · What number has 1 ten and 8 ones? = 18 (C)
- Clue 2 (Addition): "A WITNESS REPORTS THAT THE ANTIHERO IS A FEMALE"36 + 49 = 85 (A) · 33 + 23 = 56 (F) · 51 + 38 = 89 (I) · 42 + 39 = 81 (M) · 42 + 35 = 77 (S) · 30 + 56 = 86 (H) · 45 + 28 = 73 (O) · 34 + 34 = 68 (R) · 16 + 34 = 50 (E) · 36 + 43 = 79 (W) · 15 + 38 = 53 (P) · 34 + 60 = 94 (T) · 20 + 12 = 32 (L) · 30 + 52 = 82 (N)
- Clue 3 (Subtraction): "THE ANTIHERO ONLY STRIKES AT NIGHT TO AVOID SUNLIGHT"27 - 12 = 15 (T) · 73 - 23 = 50 (K) · 37 - 7 = 30 (N) · 45 - 13 = 32 (H) · 65 - 25 = 40 (R) · 62 - 3 = 59 (S) · 52 - 29 = 23 (L) · 92 - 20 = 72 (O) · 28 - 2 = 26 (I) · 107 - 32 = 75 (G) · 66 - 12 = 54 (Y) · 32 - 3 = 29 (D) · 70 - 29 = 41 (U) · 53 - 6 = 47 (E) · 70 - 8 = 62 (V) · 90 - 12 = 78 (A)
- Clue 4 (Skip counting): "YOU FIND STRANDS OF PURPLE HAIR WHERE THE MAYOR WAS TAKEN"Skip-count by 2s. Fill the blank: 2, 4, ___, 8, 10 = 6 (Y) · Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, ___, 39, 42 = 36 (F) · Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, ___, 55, 60 = 50 (H) · Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, ___, 24, 27 = 21 (W) · Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, ___, 90, 100 = 80 (O) · Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, ___, 24, 26 = 22 (D) · Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, ___, 18, 20 = 16 (I) · Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, ___, 45, 50 = 40 (K) · Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, ___, 28, 30 = 26 (R) · Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, ___, 70, 75 = 65 (M) · Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, ___, 26, 28 = 24 (S) · Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, 16, ___, 20, 22 = 18 (P) · Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, ___, 50, 55 = 45 (E) · Skip-count by 5s. Fill the blank: 5, 10, ___, 20, 25 = 15 (U) · Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, ___, 60, 65 = 55 (N) · Skip-count by 5s. Fill the blank: 5, 10, 15, 20, ___, 30, 35 = 25 (A) · Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, 130, ___, 150, 160 = 140 (T) · Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, ___, 70, 80 = 60 (L)
- Clue 5 (Missing addends): surviving statement (box 3) → Typhoon5 + ___ = 7 = 2 · 1 + ___ = 8 = 7 · 1 + ___ = 9 = 8 · 10 + ___ = 20 = 10 · 5 + ___ = 14 = 9 · 8 + ___ = 19 = 11 · 2 + ___ = 6 = 4 · 10 + ___ = 16 = 6 · 1 + ___ = 13 = 12 · 7 + ___ = 8 = 1 · 4 + ___ = 9 = 5
About this mystery
- Grade level
- Grade 2 math
- Math topics
- Place value, Addition, Subtraction, Skip counting, Missing addends
- Reading level
- grades 1-2
- Theme
- Case of the Super Bad Superhero — set in the island of Mathhattan
- Format
- Interactive online & printable worksheet with answer key
- Solution
- One unique, verified culprit among 21 suspects